Finding the Fourth Proportional to 1,345,680,228.80, 2,019,423,136.80 and 472,279,908.80
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Solution
The fourth proportional to 1,345,680,228.80, 2,019,423,136.80 and 472,279,908.80 is: 708,736,707.63
Step by Step Solution
- Step 1: Write the proportion equation
1,345,680,228.80 : 2,019,423,136.80 = 472,279,908.80 : x - Step 2: Convert to fraction form
1,345,680,228.80/2,019,423,136.80 = 472,279,908.80/x - Step 3: Cross multiply
1,345,680,228.80x = 2,019,423,136.80 × 472,279,908.80 - Step 4: Simplify right side
1,345,680,228.80x = 953,732,974,876,513,920 - Step 5: Solve for x
x = 953,732,974,876,513,920/1,345,680,228.80 - Step 6: Final answer
x = 708,736,707.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.